A couple of showers and thunderstorms developed along the sea breeze the afternoon of September 10th. The southern most storm moved southwest through eastern Hidalgo County and produced sporadic straight-line wind damage near Mile 13 Road and FM493.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS BRO wrote it up.
A couple of showers and thunderstorms developed along the sea breeze the afternoon of September 10th. The southern most storm moved southwest through eastern Hidalgo County and produced sporadic straight-line wind damage near Mile 13 Road and FM493. Damage included a metal barn blown across the road and crumpled up 20 to 30 yards into the field across the street, a large tree down, and some awning damage to The End of the Trail Sports Bar #1.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Brownsville, TX wrote its last area forecast discussion before the first event at Sep 10, 1:20 PM CST, 2 hours 35 minutes earlier.
Area Forecast Discussion National Weather Service Brownsville TX 220 PM CDT Sun Sep 10 2023 ...New SHORT TERM, LONG TERM, MARINE... .SHORT TERM... (Tonight through Monday night) Issued at 218 PM CDT Sun Sep 10 2023 The main weather highlight in the short term period is the continued triple digit temperatures and heat indices across Deep South Texas as the region remains under the influence of mid-level ridging. The latest radar and satellite imagery reveal isolated to scattered convection over the Gulf of Mexico, which is associated with a southward moving weak mid-level disturbance. Most activity is expected to remain well east of the immediate coast, but cannot rule out isolated development during the afternoon and evening hours over the coastal waters especially as weak ascent spreads further south and interacts with deeper moisture. If any convection were to develop further inland, the main threats would be brief heavy rain, gusty winds, and lightning. Otherwise, temperatures will range from the upper 80s along the island to around 106 degrees over the Rio Grande Plains. Heat indices may briefly reach 111 degrees at some locations, but will not be widespread enough to warrant a Heat Advisory. Another warm and humid night is expected with low temperatures in the 70s and low 80s with light southeast winds. With no significant changes to our weather pattern, another hot and rain-free day is expected on Monday across the region. Heat indices will remain below Heat Advisory criteria, ranging from around 100 to 106 degrees. Despite the combination of critically dry fuels, hot temperatures, and afternoon humidity ranging from 20-35 percent along and west of I-69, winds around or below 10-12 mph will limit the rapid spread of any fire starts this afternoon and tomorrow afternoon. && .LONG TERM... (Tuesday through next Sunday) Issued at 218 PM CDT Sun Sep 10 2023 A possibility of a break in the long running hot and rain-free conditions is possible in the long term forecast. While the start of the long term will still see mostly rain-free conditions, convection will start to become more isolated by Friday, mostly along the the coast. However by Saturday the rain will be more scattered over Deep South Texas and the Rio Grande Valley as a weak cold front stalls out towards the north of the region. However, moving into Sunday, rain chances will start to decrease to more isolated, thus Saturday currently seems to be the peak chance for rain. It should be noted that with this being still very far out there is still plenty of time for this situation to change. As such, we will need to continue to further monitor how the models trend to see if they can consistently pick up on what is happening. As for the temperatures, starting with the high temperatures, most of the area will see 100s Tuesday through Friday, with locations along the coast in the 90s. Saturday and Sunday high temperatures are in the 90s for all of Deep South Texas and the Rio Grande Valley, maybe a few places will get close to 100. Heat indices are expected to stay below Heat Advisory criteria for the long term forecast giving us a bit of relief from the heat. As for the low temperatures, they will be mostly in the 70s for the duration of the long term forecast, but there might be a few places that get into the low 80s. && .AVIATION... (18Z TAFS) Issued at 1235 PM CDT Sun Sep 10 2023 VFR will prevail through the forecast period at all TAF sites. Winds will become easterly as the sea breeze moves inland this afternoon around 10-12 knots, returning southeasterly overnight with speeds generally below 8 knots. There is a low potential for isolated convection this afternoon over the Gulf waters and along the immediate coast, but do not expect impacts to the terminals at this time. && .MARINE... Issued at 218 PM CDT Sun Sep 10 2023 Now through Monday night...Generally low seas and light to moderate onshore winds are expected as weak high pressure prevails. Isolated to scattered showers and thunderstorms may develop over the Gulf waters through this evening. Besides the threat of cloud to water lightning, winds and waves will be higher near any storms. Tuesday through Next Sunday...Light to moderate onshore winds with seas in the range of mostly 1 to 2 feet with the occasional 3 feet as high pressure remains in place in over the western Gulf of Mexico. Isolated showers and thunderstorms are possible Friday and through next weekend. && .PRELIMINARY POINT TEMPS/POPS... BROWNSVILLE 80 98 77 96 / 10 10 0 20 HARLINGEN 76 100 72 98 / 0 0 0 10 MCALLEN 78 102 74 101 / 10 0 0 10 RIO GRANDE CITY 77 103 72 102 / 10 0 0 0 SOUTH PADRE ISLAND 83 89 80 89 / 10 10 10 20 BAYVIEW/PORT ISABEL 78 94 74 94 / 10 10 10 10 && .BRO WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && SHORT TERM...22-Garcia LONG TERM....64-Katz AVIATION...22-Garcia
Hazardous Weather Outlook National Weather Service Brownsville TX 425 PM CDT Sun Sep 10 2023 TXZ248>255-351-353>355-451-454-455-112130- Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo- Inland Willacy-Inland Cameron-Coastal Kenedy-Northern Hidalgo- Coastal Willacy-Coastal Cameron-Kenedy Island-Willacy Island- Cameron Island- 425 PM CDT Sun Sep 10 2023 This Hazardous Weather Outlook is for portions of Deep South Texas. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. GMZ130-132-135-150-155-170-175-112130- Laguna Madre from the Port of Brownsville to the Arroyo Colorado- Laguna Madre from the Arroyo Colorado To 5 NM north of Port Mansfield TX- Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX- Gulf waters from Port Mansfield to the Rio Grande out 20 nm- Gulf waters from Baffin Bay to Port Mansfield out 20 nm- Gulf waters from Port Mansfield to the Rio Grande extending from 20 to 60 nm- Gulf waters from Baffin Bay to Port Mansfield extending from 20 to 60 nm- 425 PM CDT Sun Sep 10 2023 This Hazardous Weather Outlook is for portions of The Gulf of Mexico and The Laguna Madre. .DAY ONE...Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.
The Brownsville radar (KBRO), 71 km away, was scanning. The volume nearest the first event began at 21:56 UTC.
3 thunderstorm wind. Local standard time, as filed.
Pictures from social media shows a metal structure crumpled up and blown several yards into the field across the street. Timing estimated by radar.
Pictures from social media show awning/roof damage to The End of the Trail Sports Bar #1 along FM493.
Pictures from social media show a large tree down in the backyard of a house across the street from Rick & Ron's Auto Sales. Minor roof damage was noted by the owner.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2023Every state in 2023This day in weather historyWarnings in Texas, September 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1120826, 1120827, 1120828.